High-Performance Double Block & Bleed Valves – API 6D, API 6A Compliant

Velan Valve Supplier | Leading Distributor & Stockist of Premium Industrial Valves

Features & Benefits

Our modular double block and bleed (DBB) valves integrate two in-line isolation valves into a single compact body with an integrated bleed valve, ensuring the highest safety standards in critical applications. Designed to replace two separate valves, our DBB solutions reduce weight, save space, and minimize leakage risks in hazardous liquid/gas transfer systems. Ideal for offshore, oil & gas, and chemical processing, these valves feature customizable materials and advanced sealing technologies for aggressive environments.

Key Advantages:

✔ Space & Cost-Efficient – Eliminates multiple valve installations, reducing piping complexity. ✔ Enhanced Safety – Bleed valve vents trapped fluid, ensuring double isolation integrity. ✔ Leak Prevention – Minimizes fugitive emissions, meeting ISO 15848 and API 6DSS standards. ✔ Versatile Material Options – CRA overlays, hard-faced seats, and corrosion-resistant alloys.

Seat Design Options

• Soft or Metal Seated with hard-faced balls & seats for extended durability.

• Self-Relieving & Double Piston Seats – Prevents pressure buildup.

• Combination Seats – Custom configurations for severe service.

Features

• Double Block & Bleed (DBB) API 6D Compliant
• Secondary Graphite Seals – Superior leak resistance.
• Anti-Static Device & Anti-Blowout Stem – Safe for explosive environments.
• Emergency Sealant Injection – On seats and stem for emergency repairs.
• Low Fugitive Emission Packing – Compliant with ISO 15848.
• CRA Overlay Available – For dynamic sealing & wetted parts.
• Extended Bonnet – For high/low-temperature applications.
• BTC Series – Ultra-compact design for high-pressure systems.

Operators & Actuation

• Manual: Wrench, gear-operated, or padlock-ready.

• Automated: Pneumatic, Hydraulic, or Electric Actuators for remote control.

Testing & Certifications

✔ API 6D, API 6A, ISO 5208, API 598 – Full compliance. ✔ Fire-Safe Certified – API 6FA / API 607 tested. ✔ SIL 3 Certified (IEC 61508) – For critical safety systems. ✔ PED 2014/68/EU – CE-compliant for European markets. ✔ API 6A PSL 1-4 & PR1/PR2 – Rigorous design validation.

Why Choose Us?

As a trusted Velan Valve Supplier, Distributor & Stockist, we provide: - Fast Global Delivery – Ready stock for urgent projects. - Custom Engineering – Valves tailored to API, ASME, and customer specs. - Competitive Pricing – Premium quality without compromise.

Contact us today for API 6D, API 6A, and high-performance double block & bleed valves!